噪音(yin)所產(chan)生(sheng)(sheng)的(de)(de)(de)(de)(de)危害是比(bi)較(jiao)(jiao)大(da)的(de)(de)(de)(de)(de),尤其(qi)(qi)是表現在(zai)(zai)如下幾(ji)個方(fang)面:1、長期在(zai)(zai)強烈的(de)(de)(de)(de)(de)噪音(yin)環境中(zhong)工作(zuo),可(ke)以使人(ren)產(chan)生(sheng)(sheng)噪聲(sheng)(sheng)(sheng)性耳聾(long)。2、影響(xiang)人(ren)們的(de)(de)(de)(de)(de)正(zheng)(zheng)(zheng)常工作(zuo)、學習及(ji)日(ri)常生(sheng)(sheng)活。那么石材加(jia)(jia)工過程中(zhong)噪音(yin)是怎(zen)樣產(chan)生(sheng)(sheng)的(de)(de)(de)(de)(de)呢?它(ta)主要(yao)來自齒(chi)(chi)(chi)(chi)尖噪聲(sheng)(sheng)(sheng),鋸(ju)(ju)片(pian)的(de)(de)(de)(de)(de)振動(dong)及(ji)物料摩擦聲(sheng)(sheng)(sheng)。齒(chi)(chi)(chi)(chi)尖噪聲(sheng)(sheng)(sheng):是當鋸(ju)(ju)片(pian)高速(su)(su)運轉(zhuan)時(shi)(shi)(shi),鋸(ju)(ju)片(pian)的(de)(de)(de)(de)(de)鋸(ju)(ju)齒(chi)(chi)(chi)(chi)與(yu)周圍的(de)(de)(de)(de)(de)空氣(qi)(qi)相(xiang)互(hu)作(zuo)用(yong),引起空氣(qi)(qi)的(de)(de)(de)(de)(de)壓力(li)脈(mo)動(dong)而產(chan)生(sheng)(sheng)的(de)(de)(de)(de)(de)噪聲(sheng)(sheng)(sheng)。齒(chi)(chi)(chi)(chi)尖噪聲(sheng)(sheng)(sheng)的(de)(de)(de)(de)(de)聲(sheng)(sheng)(sheng)功(gong)(gong)率(lv)(lv)(lv)與(yu)鋸(ju)(ju)片(pian)的(de)(de)(de)(de)(de)直徑、鋸(ju)(ju)片(pian)的(de)(de)(de)(de)(de)線速(su)(su)度(du)的(de)(de)(de)(de)(de)三(san)次(ci)方(fang)成(cheng)正(zheng)(zheng)(zheng)比(bi),當轉(zhuan)速(su)(su)越低時(shi)(shi)(shi),與(yu)其(qi)(qi)線速(su)(su)度(du)三(san)次(ci)方(fang)成(cheng)正(zheng)(zheng)(zheng)比(bi),齒(chi)(chi)(chi)(chi)尖噪聲(sheng)(sheng)(sheng)的(de)(de)(de)(de)(de)頻(pin)率(lv)(lv)(lv)可(ke)由下式(shi)計(ji)算(suan):式(shi)中(zhong):fi—齒(chi)(chi)(chi)(chi)尖噪聲(sheng)(sheng)(sheng)頻(pin)率(lv)(lv)(lv),即鋸(ju)(ju)齒(chi)(chi)(chi)(chi)每秒打空氣(qi)(qi)質點的(de)(de)(de)(de)(de)次(ci)數(shu)(shu),(HZ)z—鋸(ju)(ju)片(pian)的(de)(de)(de)(de)(de)齒(chi)(chi)(chi)(chi)數(shu)(shu)(個)n—鋸(ju)(ju)片(pian)的(de)(de)(de)(de)(de)軸的(de)(de)(de)(de)(de)轉(zhuan)速(su)(su)(r/min)i—諧波(bo)序號(hao)i=1、2、3……鋸(ju)(ju)片(pian)旋(xuan)轉(zhuan)時(shi)(shi)(shi),每個齒(chi)(chi)(chi)(chi)尖產(chan)生(sheng)(sheng)單(dan)極輻射流,并(bing)周期地通過工作(zuo)臺的(de)(de)(de)(de)(de)鋸(ju)(ju)縫向外(wai)排(pai)(pai)出,由于氣(qi)(qi)流壓力(li)發(fa)生(sheng)(sheng)激烈變化(hua),隨之產(chan)生(sheng)(sheng)排(pai)(pai)氣(qi)(qi)噪聲(sheng)(sheng)(sheng),排(pai)(pai)氣(qi)(qi)噪聲(sheng)(sheng)(sheng)的(de)(de)(de)(de)(de)升功(gong)(gong)率(lv)(lv)(lv)也(ye)隨著鋸(ju)(ju)片(pian)線速(su)(su)度(du)增大(da)而急劇(ju)增加(jia)(jia),它(ta)與(yu)氣(qi)(qi)流速(su)(su)度(du)的(de)(de)(de)(de)(de)6次(ci)方(fang)成(cheng)正(zheng)(zheng)(zheng)比(bi),在(zai)(zai)線速(su)(su)度(du)較(jiao)(jiao)小時(shi)(shi)(shi),與(yu)其(qi)(qi)5次(ci)方(fang)成(cheng)正(zheng)(zheng)(zheng)比(bi),則排(pai)(pai)氣(qi)(qi)噪聲(sheng)(sheng)(sheng)頻(pin)率(lv)(lv)(lv)為(wei):式(shi)中(zhong):fi—排(pai)(pai)氣(qi)(qi)噪聲(sheng)(sheng)(sheng)頻(pin)率(lv)(lv)(lv),(HZ)z—鋸(ju)(ju)片(pian)的(de)(de)(de)(de)(de)齒(chi)(chi)(chi)(chi)數(shu)(shu)(個)n—鋸(ju)(ju)片(pian)軸的(de)(de)(de)(de)(de)轉(zhuan)速(su)(su)(r/min)i—諧波(bo)序號(hao)i=1、2、3……在(zai)(zai)鋸(ju)(ju)片(pian)高速(su)(su)旋(xuan)轉(zhuan)時(shi)(shi)(shi),每當渦流分(fen)離的(de)(de)(de)(de)(de)頻(pin)率(lv)(lv)(lv)與(yu)鋸(ju)(ju)片(pian)的(de)(de)(de)(de)(de)固有頻(pin)率(lv)(lv)(lv)相(xiang)近時(shi)(shi)(shi),就發(fa)生(sheng)(sheng)共振,便發(fa)出“尖叫聲(sheng)(sheng)(sheng)”,其(qi)(qi)頻(pin)率(lv)(lv)(lv)為(wei):f=z fr式(shi)中(zhong):z—鋸(ju)(ju)片(pian)的(de)(de)(de)(de)(de)齒(chi)(chi)(chi)(chi)數(shu)(shu)(個)fr—軸回轉(zhuan)頻(pin)率(lv)(lv)(lv)(HZ)鋸(ju)(ju)片(pian)屬于薄壁(bi)件(jian),其(qi)(qi)剛性一般較(jiao)(jiao)差,在(zai)(zai)外(wai)力(li)的(de)(de)(de)(de)(de)作(zuo)用(yong)下很容易(yi)產(chan)生(sheng)(sheng)振動(dong),由于振動(dong)便容易(yi)產(chan)生(sheng)(sheng)物料的(de)(de)(de)(de)(de)摩擦,因此該類的(de)(de)(de)(de)(de)噪音(yin)也(ye)就隨之產(chan)生(sheng)(sheng)。
不銹(xiu)(xiu)鋼(gang)石(shi)(shi)(shi)(shi)材(cai)(cai)(cai)(cai)掛件鋼(gang)號(hao)為202以上,或根據(ju)項目實際需(xu)要采(cai)用(yong)304鋼(gang)號(hao)連接配件。(2)石(shi)(shi)(shi)(shi)材(cai)(cai)(cai)(cai)厚度要求在20mm以上,2500mm高以內(nei)的(de)墻體,豎(shu)向(xiang)需(xu)采(cai)用(yong)5#槽鋼(gang),橫(heng)向(xiang)采(cai)用(yong)40mmx40mm型(xing)角鋼(gang),間距根據(ju)石(shi)(shi)(shi)(shi)材(cai)(cai)(cai)(cai)的(de)橫(heng)縫(feng)排版(ban)確定,2500mm高以上的(de)墻體,豎(shu)向(xiang)需(xu)采(cai)用(yong)8#槽鋼(gang),橫(heng)向(xiang)采(cai)50mmx50mm型(xing)角鋼(gang),間距根據(ju)石(shi)(shi)(shi)(shi)材(cai)(cai)(cai)(cai)的(de)恒豐(feng)排版(ban)確定。3、膠粘劑粘貼施工(gong)工(gong)藝木基層面(mian)(mian)(mian)粘貼石(shi)(shi)(shi)(shi)材(cai)(cai)(cai)(cai)工(gong)藝,適用(yong)于小(xiao)(xiao)面(mian)(mian)(mian)積、小(xiao)(xiao)塊面(mian)(mian)(mian)材(cai)(cai)(cai)(cai)料施工(gong)范圍(如文化石(shi)(shi)(shi)(shi)、裝飾線、踢腳(jiao)線),須用(yong)AB膠結合(he)不銹(xiu)(xiu)鋼(gang)自攻螺釘粘接固定,石(shi)(shi)(shi)(shi)材(cai)(cai)(cai)(cai)背面(mian)(mian)(mian)應挖成(cheng)倒八字(zi)型(xing)孔,要做好防腐處(chu)(chu)理。三、墻面(mian)(mian)(mian)石(shi)(shi)(shi)(shi)材(cai)(cai)(cai)(cai)細部收(shou)口要點(dian)1、石(shi)(shi)(shi)(shi)材(cai)(cai)(cai)(cai)墻面(mian)(mian)(mian)橫(heng)縫(feng),需(xu)根據(ju)人體的(de)視線高度排布,施工(gong)時需(xu)廠家定加工(gong),現場安裝。2、墻面(mian)(mian)(mian)石(shi)(shi)(shi)(shi)材(cai)(cai)(cai)(cai)陽角收(shou)口均需(xu)45度拼接對(dui)角處(chu)(chu)理;待墻面(mian)(mian)(mian)石(shi)(shi)(shi)(shi)材(cai)(cai)(cai)(cai)全(quan)部鋪貼完(wan)成(cheng)后,須調制(zhi)與石(shi)(shi)(shi)(shi)材(cai)(cai)(cai)(cai)同色的(de)云石(shi)(shi)(shi)(shi)膠作勾縫(feng)處(chu)(chu)理,勾縫(feng)必須嚴密(mi)。
復合(he)(he)結(jie)(jie)(jie)構(gou)復合(he)(he)阻尼結(jie)(jie)(jie)構(gou)在(zai)(zai)減(jian)(jian)振(zhen)(zhen)降(jiang)噪工程(cheng)結(jie)(jie)(jie)構(gou)上(shang)(shang)也(ye)開始應用(yong),它是(shi)薄彈(dan)性(xing)(xing)材(cai)(cai)料將(jiang)幾層板(ban)粘結(jie)(jie)(jie)在(zai)(zai)一起(qi)的(de)(de)(de)(de)(de)(de)具(ju)(ju)有(you)高(gao)阻尼特(te)(te)性(xing)(xing),并(bing)保(bao)持金屬(shu)板(ban)材(cai)(cai)料強度(du)(du)(du)的(de)(de)(de)(de)(de)(de)約束(shu)阻尼層結(jie)(jie)(jie)構(gou),阻尼層厚度(du)(du)(du)為0.10mm。在(zai)(zai)常(chang)溫和高(gao)溫(80—100℃)下具(ju)(ju)有(you)良好的(de)(de)(de)(de)(de)(de)阻尼特(te)(te)性(xing)(xing),它對振(zhen)(zhen)動能量(liang)的(de)(de)(de)(de)(de)(de)消(xiao)散(san),從一般普通彈(dan)性(xing)(xing)變(bian)(bian)形(xing)(xing)作功(gong)力消(xiao)耗,提高(gao)為高(gao)彈(dan)性(xing)(xing)體變(bian)(bian)形(xing)(xing)的(de)(de)(de)(de)(de)(de)做功(gong)消(xiao)耗,使變(bian)(bian)形(xing)(xing)滯后(hou)應力的(de)(de)(de)(de)(de)(de)程(cheng)度(du)(du)(du)增(zeng)加(jia)(jia)(jia),另外,這(zhe)種約束(shu)阻尼結(jie)(jie)(jie)構(gou)拉壓變(bian)(bian)形(xing)(xing)所消(xiao)散(san)的(de)(de)(de)(de)(de)(de)能量(liang),消(xiao)耗因子一般在(zai)(zai)0.3以(yi)(yi)上(shang)(shang),大峰(feng)值可在(zai)(zai)0.85,并(bing)且(qie)是(shi)有(you)寬頻(pin)帶控制(zhi)特(te)(te)性(xing)(xing),在(zai)(zai)很大的(de)(de)(de)(de)(de)(de)頻(pin)率范圍內起(qi)到抑制(zhi)峰(feng)值的(de)(de)(de)(de)(de)(de)作用(yong),鋸(ju)片(pian)(pian)基體常(chang)用(yong)的(de)(de)(de)(de)(de)(de)復合(he)(he)阻尼層結(jie)(jie)(jie)構(gou)為2層。利用(yong)復合(he)(he)阻尼結(jie)(jie)(jie)構(gou)的(de)(de)(de)(de)(de)(de)鋸(ju)片(pian)(pian)基體有(you)如下特(te)(te)點:(1)鋸(ju)片(pian)(pian)的(de)(de)(de)(de)(de)(de)校平及應力的(de)(de)(de)(de)(de)(de)調整難度(du)(du)(du)很大;(2)生產(chan)效(xiao)率較低(di),成本較高(gao);(3)加(jia)(jia)(jia)工處理技術不(bu)當,基體會缺乏(fa)軸向剛(gang)(gang)性(xing)(xing)。安(an)裝及使用(yong)方法(fa)降(jiang)噪1、夾(jia)盤(pan)改造降(jiang)噪(1)在(zai)(zai)不(bu)影(ying)響鋸(ju)切高(gao)度(du)(du)(du)前提下,應盡量(liang)加(jia)(jia)(jia)大鋸(ju)片(pian)(pian)的(de)(de)(de)(de)(de)(de)夾(jia)盤(pan)直徑(jing),這(zhe)樣(yang)可以(yi)(yi)提高(gao)鋸(ju)片(pian)(pian)剛(gang)(gang)性(xing)(xing),減(jian)(jian)少彎曲振(zhen)(zhen)動,對降(jiang)低(di)振(zhen)(zhen)動噪聲是(shi)及其有(you)效(xiao)的(de)(de)(de)(de)(de)(de),實驗研究證明(ming),當夾(jia)盤(pan)直徑(jing)加(jia)(jia)(jia)大到鋸(ju)片(pian)(pian)直徑(jing)的(de)(de)(de)(de)(de)(de)3/4倍時,減(jian)(jian)噪佳(jia)。(2)為了增(zeng)加(jia)(jia)(jia)鋸(ju)片(pian)(pian)的(de)(de)(de)(de)(de)(de)彈(dan)性(xing)(xing),使其受力均勻,在(zai)(zai)夾(jia)盤(pan)上(shang)(shang)開一圈(quan)槽,嵌入橡膠(jiao)條或軟金屬(shu)。
彭水裝修大理石石材廠冬季(ji)為了方便清潔工(gong)作和清潔效果,建議(yi)在出(chu)入口放置吸水地(di)墊,保(bao)潔員也(ye)應同時作好隨時清潔污垢、污水的(de)(de)(de)(de)準備,且(qie)地(di)面(mian)(mian)也(ye)應使用刷地(di)機每(mei)周(zhou)清洗(xi)1次(ci)地(di)面(mian)(mian)。大理(li)(li)石地(di)面(mian)(mian)的(de)(de)(de)(de)定期養護(hu)1、大理(li)(li)石地(di)面(mian)(mian)在完成一次(ci)的(de)(de)(de)(de)全(quan)方位(wei)蠟(la)面(mian)(mian)護(hu)理(li)(li)后(hou)的(de)(de)(de)(de)3個(ge)月后(hou),局部(bu)磨損處(chu)應該進行補(bu)蠟(la)處(chu)理(li)(li)并拋(pao)光(guang),可延長蠟(la)面(mian)(mian)的(de)(de)(de)(de)壽命。2、大理(li)(li)石打蠟(la)地(di)面(mian)(mian)建議(yi)有條件(jian)的(de)(de)(de)(de)單位(wei),每(mei)晚在出(chu)入口處(chu)及電梯處(chu)進行拋(pao)光(guang)噴磨養護(hu)。3、大理(li)(li)石地(di)面(mian)(mian)在完成一次(ci)的(de)(de)(de)(de)全(quan)方位(wei)蠟(la)面(mian)(mian)護(hu)理(li)(li)后(hou)的(de)(de)(de)(de)8—10個(ge)月后(hou),建議(yi)起(qi)蠟(la)或整體清洗(xi)完畢后(hou)重(zhong)新上蠟(la)。如何降低石材(cai)加(jia)工(gong)過程中產生(sheng)的(de)(de)(de)(de)噪音?石材(cai)加(jia)工(gong)過程中不(bu)論使用什(shen)么(me)設(she)備及加(jia)工(gong)工(gong)藝都難(nan)免(mian)會有噪音的(de)(de)(de)(de)產生(sheng),特別是在不(bu)規范(fan)操(cao)作或過負荷操(cao)作時所產生(sheng)的(de)(de)(de)(de)強(qiang)烈刺耳的(de)(de)(de)(de)噪音會更加(jia)嚴(yan)重(zhong)影響周(zhou)圍的(de)(de)(de)(de)環境。
毛(mao)邊石(shi)(shi)(shi)(shi)材加(jia)(jia)(jia)(jia)(jia)工(gong)(gong)(gong)(gong)(gong)技(ji)(ji)能(neng)(neng)(neng)(neng)毛(mao)邊重(zhong)慶石(shi)(shi)(shi)(shi)材加(jia)(jia)(jia)(jia)(jia)工(gong)(gong)(gong)(gong)(gong)技(ji)(ji)能(neng)(neng)(neng)(neng)是(shi)根(gen)據計劃(hua)或用戶(hu)(hu)需(xu)(xu)(xu)要(yao),在(zai)已開掘或切開的(de)(de)(de)(de)(de)(de)(de)塊(kuai)石(shi)(shi)(shi)(shi)、條石(shi)(shi)(shi)(shi)、石(shi)(shi)(shi)(shi)板的(de)(de)(de)(de)(de)(de)(de)外表進行(xing)加(jia)(jia)(jia)(jia)(jia)工(gong)(gong)(gong)(gong)(gong)的(de)(de)(de)(de)(de)(de)(de)。加(jia)(jia)(jia)(jia)(jia)工(gong)(gong)(gong)(gong)(gong)品種有(you)粗鑿(zao)光(一(yi)步做鑿(zao))、細鑿(zao)光(二步做鑿(zao),或稱點光、豆光、瞪砂地)、一(yi)斧(fu)光(一(yi)遍(bian)(bian)(bian)剁(duo)(duo)斧(fu))、二斧(fu)光(二遍(bian)(bian)(bian)剁(duo)(duo)斧(fu))、三斧(fu)光(三遍(bian)(bian)(bian)剁(duo)(duo)斧(fu))、機刨光、亞(ya)光(粗磨(mo)光)、細磨(mo)光等(deng)幾(ji)種。傳統(tong)的(de)(de)(de)(de)(de)(de)(de)加(jia)(jia)(jia)(jia)(jia)工(gong)(gong)(gong)(gong)(gong)是(shi)在(zai)毛(mao)坯的(de)(de)(de)(de)(de)(de)(de)塊(kuai)石(shi)(shi)(shi)(shi)(荒(huang)料)、條石(shi)(shi)(shi)(shi)、石(shi)(shi)(shi)(shi)板的(de)(de)(de)(de)(de)(de)(de)基礎(chu)上(shang)進行(xing)分品種、分層(ceng)次(ci)加(jia)(jia)(jia)(jia)(jia)工(gong)(gong)(gong)(gong)(gong),根(gen)據用戶(hu)(hu)需(xu)(xu)(xu)要(yao)有(you)粗鑿(zao)光至(zhi)細磨(mo)光逐遍(bian)(bian)(bian)加(jia)(jia)(jia)(jia)(jia)工(gong)(gong)(gong)(gong)(gong)。例如,用戶(hu)(hu)需(xu)(xu)(xu)要(yao)二斧(fu)光,須經粗鑿(zao)、細鑿(zao)、一(yi)遍(bian)(bian)(bian)斧(fu)、二遍(bian)(bian)(bian)斧(fu)才行(xing)。根(gen)據用戶(hu)(hu)的(de)(de)(de)(de)(de)(de)(de)需(xu)(xu)(xu)要(yao),重(zhong)慶石(shi)(shi)(shi)(shi)材加(jia)(jia)(jia)(jia)(jia)工(gong)(gong)(gong)(gong)(gong)主要(yao)由(you)(you)以(yi)下幾(ji)種層(ceng)次(ci)的(de)(de)(de)(de)(de)(de)(de)加(jia)(jia)(jia)(jia)(jia)工(gong)(gong)(gong)(gong)(gong)技(ji)(ji)能(neng)(neng)(neng)(neng):(1)毛(mao)坯的(de)(de)(de)(de)(de)(de)(de)塊(kuai)石(shi)(shi)(shi)(shi)、條石(shi)(shi)(shi)(shi)、石(shi)(shi)(shi)(shi)板筑(zhu)方(fang)的(de)(de)(de)(de)(de)(de)(de)加(jia)(jia)(jia)(jia)(jia)工(gong)(gong)(gong)(gong)(gong)技(ji)(ji)能(neng)(neng)(neng)(neng)。(2)墻面線槽的(de)(de)(de)(de)(de)(de)(de)加(jia)(jia)(jia)(jia)(jia)工(gong)(gong)(gong)(gong)(gong)技(ji)(ji)能(neng)(neng)(neng)(neng)。(3)線(腳)條的(de)(de)(de)(de)(de)(de)(de)加(jia)(jia)(jia)(jia)(jia)工(gong)(gong)(gong)(gong)(gong)技(ji)(ji)能(neng)(neng)(neng)(neng)。(4)圓(yuan)形柱(zhu)或柱(zhu)座加(jia)(jia)(jia)(jia)(jia)工(gong)(gong)(gong)(gong)(gong)技(ji)(ji)能(neng)(neng)(neng)(neng)(不管(guan)全體或拼裝)。(5)建筑(zhu)飾(shi)面的(de)(de)(de)(de)(de)(de)(de)花飾(shi)、雕琢(即浮雕、圓(yuan)雕)。(6)蘑菇石(shi)(shi)(shi)(shi)與天然面(劈毛(mao)石(shi)(shi)(shi)(shi))的(de)(de)(de)(de)(de)(de)(de)加(jia)(jia)(jia)(jia)(jia)工(gong)(gong)(gong)(gong)(gong)技(ji)(ji)能(neng)(neng)(neng)(neng)(用塊(kuai)石(shi)(shi)(shi)(shi)、條石(shi)(shi)(shi)(shi)制作)。重(zhong)慶石(shi)(shi)(shi)(shi)材加(jia)(jia)(jia)(jia)(jia)工(gong)(gong)(gong)(gong)(gong)為(wei)你解析傳統(tong)的(de)(de)(de)(de)(de)(de)(de)石(shi)(shi)(shi)(shi)材由(you)(you)于加(jia)(jia)(jia)(jia)(jia)工(gong)(gong)(gong)(gong)(gong)設備和(he)加(jia)(jia)(jia)(jia)(jia)工(gong)(gong)(gong)(gong)(gong)技(ji)(ji)術捆綁,以(yi)及(ji)要(yao)作為(wei)承(cheng)重(zhong)的(de)(de)(de)(de)(de)(de)(de)構(gou)造構(gou)件,所以(yi)加(jia)(jia)(jia)(jia)(jia)工(gong)(gong)(gong)(gong)(gong)出來的(de)(de)(de)(de)(de)(de)(de)石(shi)(shi)(shi)(shi)材制品一(yi)般比(bi)照厚重(zhong)、粗糙,但這些(xie)石(shi)(shi)(shi)(shi)材制品難以(yi)日益翻開和(he)精雕細鏤的(de)(de)(de)(de)(de)(de)(de)需(xu)(xu)(xu)求。